如何通过asp.net类序列化生成xml文件？
本文实例讲述了asp.net类序列化生成xml文件的方法。分享给大家供大家参考，具体如下：
根据设计的需求需要开发多个商品的API 原XML文件如下：
<urlset> <url> <loc>http://www.xxxxx.com/todaydetials.aspx?id=143</loc> <data> <display> <website>爱购114</website> <siteurl>http://www.xxxxx.com/</siteurl> <city>杭州</city> <webSitetitle></webSitetitle> <image></image> <startTime>2011-2-9</startTime> <endTime>2011-2-15</endTime> <value>3880</value> <price>2088</price> <rebate>0.53</rebate> <bought>0</bought> </display> </data> </url> </urlset>
现在需求是要根据数据库有几条商品信息 相应的API XML文件出现几个URL节点！ 采用类序列化成XML文件然后读取相应生成的XML文件就可以展示多个商品XML的信息 实现代码如下：
首先定义好XML 各个节点的数据及父子节点的关系类：
#region 定义数据实体类xml数据结构
public class urlset
{
public List<url> urlList
{
get;
set;
}
}
public class url
{
public string loc
{
get;
set;
}
public List<data> dataList
{
get;
set;
}
}
public class data
{
public List<display> displayList
{
get;
set;
}
}
public class display
{
public string website
{
get;
set;
}
public string siteurl
{
get;
set;
}
public string city
{
get;
set;
}
public string webSitetitle
{
get;
set;
}
public string image
{
get;
set;
}
public string startTime
{
get;
set;
}
public string endTime
{
get;
set;
}
public double value
{
get;
set;
}
public double price
{
get;
set;
}
public double rebate
{
get;
set;
}
public int bought
{
get;
set;
}
}
#endregion
第二步：#region 定义获取网站信息实体类
public class WebSiteInfo
{
/// <summary>
/// 商品标题
/// </summary>
public string title { get; set; }
/// <summary>
/// 商品发布时间
/// </summary>
public DateTime createtime { get; set; }
/// <summary>
/// 商品图片
/// </summary>
public string productimg { get; set; }
/// <summary>
/// 市场价
/// </summary>
public decimal market_price { get; set; }
/// <summary>
/// 团购价
/// </summary>
public decimal team_price { get; set; }
/// <summary>
/// 折扣价
/// </summary>
public decimal zhekou_price { get; set; }
/// <summary>
/// 城市名称
/// </summary>
public string cityName { get; set; }
/// <summary>
/// 商品开始时间
/// </summary>
public DateTime begin_time { get; set; }
/// <summary>
/// 结束时间
/// </summary>
public DateTime end_time { get; set; }
/// <summary>
/// 商家名称
/// </summary>
public string merchants_id { get; set; }
/// <summary>
/// 本单详情
/// </summary>
public string description { get; set; }
/// <summary>
/// 最低购买人数
/// </summary>
public int lowBuNo { get; set; }
/// <summary>
/// 商家地址
/// </summary>
public string Address { get; set; }
/// <summary>
/// 商家电话
/// </summary>
public string Telphone { get; set; }
/// <summary>
/// 城市区号
/// </summary>
public string cCode { get; set; }
/// <summary>
/// 文件夹名称
/// </summary>
public string folderName { get; set; }
/// <summary>
/// 团购状态
/// </summary>
public string StatusMessage { get; set; }
/// <summary>
/// 现在购买人数
/// </summary>
public int nownumber { get; set; }
/// <summary>
/// 商品编号
/// </summary>
public int productID { get; set; }
}
#endregion
第三步：获取数据库商品信息记录并添加到对象的集合中（Arraylist）：
#region 获取xml实体类信息
/// <summary>
/// 获取xml实体类信息
/// </summary>
/// <returns></returns>
public static ArrayList GetWebModelInfo()
{
ArrayList list = new ArrayList();
string strSQL = "select a.id, a.merchantsID,a.cCode,a.prodCode,a.statue,a.now_number, a.title,a.createtime,a.productimg,a.market_price,a.team_price,a.zhekou_price,a.cityName,a.begin_time,a.end_time,a.description,a.lowBuyNo,b.Address,b.Tel from tg_product as a left join tg_merchants as b on a.merchantsID=b.merchants_id where a.ispublic=1 and statue>-1 and getdate()<dateadd(day,1,a.end_time) order by a.createtime desc";
DataSet ds = FrameWork.Data.SqlHelper.ReturnDataSet(CommandType.Text, strSQL, null);
if (ds.Tables[0].Rows.Count > 0)
{
foreach (DataRow dr in ds.Tables[0].Rows)
{
WebSiteInfo webModel = new WebSiteInfo();
//城市名称
webModel.cityName = dr["cityName"].ToString();
//商品标题
webModel.title = dr["title"].ToString();
//商品创建时间
webModel.createtime = Convert.ToDateTime(dr["createtime"].ToString());
//商家名称
webModel.merchants_id = dr["merchantsID"].ToString();
//商品图片
webModel.productimg = dr["productimg"].ToString();
//市场价
webModel.market_price = Convert.ToDecimal(dr["market_price"].ToString());
//团购价
webModel.team_price = Convert.ToDecimal(dr["team_price"].ToString());
//折扣价
webModel.zhekou_price = Convert.ToDecimal(dr["zhekou_price"].ToString());
//开始时间
webModel.begin_time = Convert.ToDateTime(dr["begin_time"].ToString());
//结束时间
webModel.end_time = Convert.ToDateTime(dr["end_time"].ToString());
//商品说明
webModel.description = dr["description"].ToString();
//最低购买数量
webModel.lowBuNo = Convert.ToInt32(dr["lowBuyNo"].ToString());
//商家电话
webModel.Telphone = dr["Tel"].ToString();
//商家地址
webModel.Address = dr["Address"].ToString();
//城市编号
webModel.cCode = dr["cCode"].ToString();
//图片文件夹名称
webModel.folderName = dr["prodCode"].ToString();
//现在购买人数
webModel.nownumber = Convert.ToInt32(dr["now_number"].ToString());
//商品编号
webModel.productID = Convert.ToInt32(dr["id"].ToString());
int status = Convert.ToInt32(dr["statue"].ToString());
switch (status)
{
case 0:
webModel.StatusMessage = "结束";
break;
case 1:
webModel.StatusMessage = "成功";
break;
}
list.Add(webModel);
}
}
return list;
}
#endregion
最后一步将数据库读取来的信息赋值到XML 数据类型中 并序列化成XML文件保存成XML格式的文件读取文件展现到界面：
#region 页面加载 根据数据库商品记录数生成xml文件信息
/// <summary>
/// 页面加载 根据数据库商品记录数生成xml文件信息
/// </summary>
List<url> urlList = null;
urlset urlsetList = new urlset();
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
ArrayList listinfo=GetWebModelInfo();
urlList = new List<url>();
for (int i = 0; i < listinfo.Count; i++)
{
WebSiteInfo webInfo = listinfo[i] as WebSiteInfo;
List<display> displayList = new List<display>();
display display = new display();
display.website = "爱购114";
display.siteurl = "http://www.xxxxx.com/";
//城市名称
display.city = webInfo.cityName;
//商品标题
display.webSitetitle = webInfo.title;
//商品图片
display.image = "http://211.155.235.30/tuangou/" + webInfo.folderName + "/" + webInfo.productimg;
//商品开始时间
display.startTime = webInfo.begin_time.ToShortDateString();
//商品结束时间
display.endTime = webInfo.end_time.ToShortDateString();
//市场价
display.value = Convert.ToDouble(webInfo.market_price);
//团购价
display.price = Convert.ToDouble(webInfo.team_price);
//折扣价
display.rebate = Convert.ToDouble(webInfo.zhekou_price);
//现在购买的人数
display.bought = webInfo.nownumber;
displayList.Add(display);
List<data> dataList = new List<data>();
data data = new data();
data.displayList = displayList;
dataList.Add(data);
url url = new url();
url.loc = String.Format("http://www.xxxxx.com/todaydetials.aspx?id={0}", webInfo.productID.ToString());
url.dataList = dataList;
urlList.Add(url);
urlsetList.urlList = urlList;
}
try
{
XmlSerializerNamespaces xmlns = new XmlSerializerNamespaces();
xmlns.Add(String.Empty, String.Empty);
//构造字符串
StringBuilder sb = new StringBuilder();
//将字符串写入到stringWriter对象中
StringWriter sw = new StringWriter(sb);
//xml序列化对象 typeof(类名)
XmlSerializer ser = new XmlSerializer(typeof(urlset));
//把Stream对象和urlset一起传入，序列化出一个字符串sb
ser.Serialize(sw, urlsetList, xmlns);
sw.Close();
string FILE_NAME = HttpContext.Current.Server.MapPath("API/54tuan.xml");
FileInfo fi = new FileInfo(FILE_NAME);
//如果文件己经存在则删除该文件
if (fi.Exists)
{
if (fi.Attributes.ToString().IndexOf("ReadOnly") >= 0) {
fi.Attributes = FileAttributes.Normal;
}
File.Delete(fi.Name);
}
//创建文件 并写入字符串
using (StreamWriter sWrite = File.CreateText(FILE_NAME))
{
sWrite.Write(sb.ToString().Replace("encoding=/"utf-16/"", "encoding=/"utf-8/"").Replace("<urlList>", "").Replace("</urlList>", "").Replace("<dataList>", "").Replace("</dataList>", "").Replace("<displayList>", "").Replace("<displayList>", "").Replace("</displayList>", ""));
sWrite.Close();
}
//输出序列化后xml文件
Response.ClearContent();
Response.ClearHeaders();
Response.ContentType = "application/xml";
Response.WriteFile(HttpContext.Current.Server.MapPath("API/54tuan.xml"));
Response.Flush();
Response.Close();
}
catch (Exception ex)
{
Response.Write(ex.Message);
}
finally
{
}
}
}
#endregion
希望本文所述对大家asp.net程序设计有所帮助。
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